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Marine Biology

, Volume 87, Issue 1, pp 61–66 | Cite as

Scanning electron microscopy investigation of bacterial colonization of the marine copepod Acartia clausi

  • S. Nagasawa
  • U. Simidu
  • T. Nemoto
Article

Abstract

Association between copepods and bacteria was observed in many scanning electron micrographs. Particular sites on the copepods were selectively colonized by bacteria; the joints of segments and legs, swimming legs and depressed parts of the body surface were found to be densely covered with bacteria. In comparison, bacterial attachment to copepod skeletons in fecal pellets excreted by chaetognaths was not selective; bacteria were sparsely found all over the copepod. Between 9 to 30% of copepods in Tokyo Bay waters had attached bacteria in January and April 1983.

Keywords

Microscopy Electron Microscopy Scan Electron Microscopy Body Surface Electron Micrographs 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

  1. Colwell, R. R., J. Kaper, R. Seidler, M. J. Voll, L. A. McNicol, S. Gargas, H. Lockman, D. Maneval, E. Remmers, S. W. Joseph, H. Bradford, N. Roberts, I. Huq and A. Huq: Isolation of 01 and non-01 Vibrio cholerae from estuaries and brackish water environments. In: Proceedings of the Fifteenth U.S.-Japan Cooperative Medical Science Program Joint Conference on Cholera, pp 44–56. Bethesda, MD: US Department of Health, Education and Welfare 1980Google Scholar
  2. Fletcher, M. and K. C. Marshall: Are solid surface of ecological significance to aquatic bacteria? In: Advances in microbial ecology, Vol. 6. pp 199–236. Ed. by K. C. Marshall. New York and London: Plenum Press 1982Google Scholar
  3. Fukami, K., U. Simidu and N. Taga: Distribution of heterotrophic bacteria in relation to the concentration of particulate organic matter in seawater. Can. J. Microbiol. 29, 570–575 (1983)Google Scholar
  4. Hickman, C. P.: Biology of the invertebrates, 673 pp. St. Louis, MO: C.V. Mosby Co. 1967Google Scholar
  5. Hobbie, J. E., O. Holm-Hansen, T. T. Packard, L. R. Pomeroy, R. W. Sheldon, J. P. Thomas and W. J. Wiebe: A study of the distribution and activity of microorganisms in ocean water. Limnol. Oceanogr. 17, 544–555 (1972)Google Scholar
  6. Huq, A., E. Small, P. A. West, M. I. Huq, R. Rahman and R. R. Colwell: Ecological relationships between Vibrio cholerae and planktonic crustacean copepods. Appl. environ. Microbiol. 45, 275–283 (1983)PubMedGoogle Scholar
  7. Kaneko, T. and R. R. Colwell: Adsorption of Vibrio parahaemolyticus onto chitin and copepods. Appl. Microbiol. 29, 269–274 (1975)Google Scholar
  8. Nagasawa, S.: Laboratory feeding and egg production in the chaetognath Sagitta crassa Tokioka. J. exp. mar. Biol. Ecol. 76, 51–65 (1984)Google Scholar
  9. Nagasawa, S., U. Simidu and T. Nemato: Bacterial invasion of chaetognaths under laboratory and natural conditions. J. oceanogr. Soc. Japan, 40, 327–333 (1984)Google Scholar
  10. Nagasawa, S. and T. Nemoto: X-diseases in the chaetognath Sagitta crassa. Helgoländer Meeresunters. 37, 139–148 (1984)Google Scholar
  11. Simidu, U., K. Ashino and E. Kaneko: Bacterial flora of phyto-and zooplankton in the inshore water of Japan. Can. J. Microbiol. 17, 1157–1160 (1971)PubMedGoogle Scholar
  12. Sochard, M. R., D. F. Wilson, B. Austin and R. R. Colwell: Bacteria associated with the surface and gut of marine copepods. Appl. environ. Microbiol. 37, 750–759 (1979)Google Scholar
  13. Wood, E. J. F.: Marine microbial ecology, 243 pp. London: Chapman and Hall Ltd. 1965Google Scholar
  14. ZoBell, C. E.: The effect of solid surfaces upon bacterial activity. J. Bacteriol. 46, 39–56 (1943)Google Scholar

Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • S. Nagasawa
    • 1
  • U. Simidu
    • 1
  • T. Nemoto
    • 1
  1. 1.Ocean Research InstituteUniversity of TokyoNakano-ku, TokyoJapan

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